Cancer that begins in the bones (primary bone cancer) is rare — accounting for less than 0.2% of annual cancer diagnoses. It occurs most commonly in the long bones of the arms and legs, usually in children and young adults. Cancer that has spread from other parts of the body to the bones (metastatic bone cancer) is more common and occurs most often in the hip, thighbone, shoulder and spine.

Types of Bone Cancer


Osteosarcoma

About 35% of primary bone cancers are osteosarcomas, which usually affect patients between age 10 and 25. The most common site for this cancer is the knee.


Chondrosarcoma

This form of bone cancer accounts for 26% of cases. It is most often diagnosed in patients over age 50 and forms in the cartilage of the pelvis, shoulder, knee or upper thigh.


Ewing’s Sarcoma

Making up about 16% of bone cancer cases, Ewing’s sarcoma usually occurs in the hip, ribs, upper arm, and thigh. It affects primarily children and young adults.


Fibrosarcomas

Older patients may develop this very rare cancer after radiation therapy for other cancers. Fibrosarcomas usually occur in the knee or hip.


Giant cell tumors

are most frequently seen in young adults and in women more often than men.


Adamantinomas

usually occur in the shinbone.


Chordomas

are most often found in the sacrum (tailbone).

Oncology San Antonio - cancer information

Multidisciplinary Cancer Treatment